Tentacruel can spin his whole body.
Hitmontrio, well, it's not like the only factor of a pokemon getting a move is because of it's design. That is just the point you two are focusing on.
Delibird, above, and Game Freak might have not wanted it to get out-classed by articuno completely.
And Tyrogue look at the hitmontrio.
Design isn't everything in pokemon learning moves, the hitmontrio benefit greatly from it (whereas Steelix won't) and Delibird is an odd-ball. I don't know, I'm not game freak, but I do know that your post is rubbish, since that is the reason he is saying Porygon and Magnemite can't learn it which was also what we said as a counter-argument so either way we win. Well, I suppose it's I now, Alice left...
Edit: Sorry to break up this party, but it's 11 where I am and I'm exhausted, so I'm going to bed. I can carry it on tomorrow though...
"Oh no, we're not lost it's just that we don't know where we are" - Brock
19:59 Darknesscrusher Just watch fucking porn man
19:59 Darknesscrusher Lesbo is better anyway